Jones and Thomas come in at fly-half and full-back for James Hook and Kevin
Morgan, after successfully replacing the two in the opening win over Canada.
Charvis' replacement of Alix Popham in the back row is more of a shock, the veteran
considered a more robust man.
Jonathan Thomas moves from blind-side to number eight, Popham, Hook and
Morgan all selected on the bench.
SCRUM V DEBATE ON 606
The rest of the team is unchanged, Adam Jones
Jenkins has truly lost the plot,
holding on to the tight-head jersey ahead of Chris Jonathan Thomas only weighs 16st,
Horsman, who has troubled Australia with his Palu will destroy him!
scrummaging in recent encounters.
Loose-head prop Gethin Jenkins is set to become the
18th Welsh player to reach the 50-cap mark.
Ian Evans is back to training in a fully fit, 30-man squad, but the Ospreys lock does
not make the cut, having not played since December.
"We have said all along that we would be looking for consistency of selection at this
stage of our campaign," said coach Gareth Jenkins.
"We have brought in three players who showed last We respect Australia but we do not
weekend what experienced heads can do to a
Wales coach Gareth Jenkins
"They picked up the game by the scruff of the neck
against Canada and were able to fashion a victory for us.
"Our team is evolving at the right time and we are very much looking forward to the
challenge this weekend.
"This is arguably the game of the group and it is certainly the one that both sides
will have targeted to win.
"The Wallabies are ranked five places ahead of us in the IRB world rankings and we
respect them as an outstanding rugby nation. But we
do not fear them."
Australia have such confidence in
their play that they will feel they
"We need to match Australia up front and have the have one hand on the win already
backs to get around them," Charvis told BBC Sport
"I've faced the Wallabies a number of times and - like
all southern hemisphere teams - they have such confidence in their play that they
will feel they have one hand on the win already.
"They have a world class back row who threaten in all areas.
"It's hard to beat a side like that. You have to show tenacity and perform to your
Wales team to play Australia at Cardiff's Millennium Stadium on Saturday: G
Thomas (Cardiff Blues, capt); M Jones (Llanelli Scarlets), T Shanklin (Cardiff Blues),
S Parker (Ospreys), S Williams (Ospreys); S Jones (Llanelli Scarlets), D Peel (Llanelli
Scarlets); G Jenkins (Cardiff Blues), M Rees (Llanelli Scarlets), A Jones (Ospreys), I
Gough (Ospreys), AW Jones (Ospreys), C Charvis (Newport Gwent Dragons), M
Williams (Cardiff Blues), J Thomas (Ospreys).
Replacements: T Rhys Thomas (Cardiff Blues), D Jones (Ospreys), M Owen
(Newport Gwent Dragons), A Popham (Llanelli Scarlets), M Phillips (Ospreys), J Hook
(Ospreys), K Morgan (Newport Gwent Dragons).